* [PATCH edk2-platforms v1] Platform/ARM: Map Platform Boot Timeout PCD to global NV variable
@ 2018-04-30 16:29 Alexei Fedorov
2018-05-01 11:48 ` Ard Biesheuvel
0 siblings, 1 reply; 2+ messages in thread
From: Alexei Fedorov @ 2018-04-30 16:29 UTC (permalink / raw)
To: edk2-devel
Cc: Arvind Chauhan, Daniil Egranov, Thomas Panakamattam Abraham,
Ard.Biesheuvel, Leif.Lindholm, Michael.d.kinney, Matteo.Carlini,
Stephanie.Hughes-Fitt, nd, Evan.Lloyd, Sami.Mujawar
From: Alexei Fedorov <Alexei.Fedorov@arm.com>
Table 13 of UEFI Specification 2.7A describes Timeout
global variable as NV (non-volatile), however
gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
is defined in [PcdsFixedAtBuild.common] section of
edk2-platforms\Platform\ARM\VExpressPkg\ArmVExpress.dsc.inc.
This prevents Timeout value from being persistent across
resets and power cycles, see BdsEntry() code
in MdeModulePkg\Universal\BdsDxe\BdsEntry.c:
//
// Initialize L"Timeout" EFI global variable.
//
BootTimeOut = PcdGet16 (PcdPlatformBootTimeOut);
This patch fixes the above issue by mapping PcdPlatformBootTimeOut
to global NV variable "Timeout":
[PcdsDynamicHii.common.DEFAULT]
gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|L"Timeout"|gEfiGlobalVariableGuid|0x0|10
Change-Id: I8ab8854c0789da206bf821391c67007259e48361
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Evan Lloyd <Evan.Lloyd@arm.com>
---
All the changes can be reviewed at:
https://github.com/AlexeiFedorov/edk2-platforms/tree/202_timeout_value_v1
Notes:
v1:
- Map PcdPlatformBootTimeOut to global NV Timeout variable [Alexei]
Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc b/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
index 7cb47937329efa1944ec4c156e2be995a755ce6f..de201b0c81d020e1e06ee320cf0f14f186723657 100644
--- a/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
+++ b/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2011-2015, ARM Limited. All rights reserved.
+# Copyright (c) 2011-2018, ARM Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -353,8 +353,6 @@ [PcdsFixedAtBuild.common]
# List of Device Paths that support BootMonFs
gArmBootMonFsTokenSpaceGuid.PcdBootMonFsSupportedDevicePaths|L"VenHw(E7223039-5836-41E1-B542-D7EC736C5E59);VenHw(1F15DA3C-37FF-4070-B471-BB4AF12A724A)"
- gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|10
-
# RunAxf support via Dynamic Shell Command protocol
# We want to use the Shell Libraries but don't want it to initialise
# automatically. We initialise the libraries when the command is called by the
@@ -399,6 +397,9 @@ [PcdsFixedAtBuild.common]
#
gEfiMdeModulePkgTokenSpaceGuid.PcdSetNxForStack|TRUE
+[PcdsDynamicHii.common.DEFAULT]
+ gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|L"Timeout"|gEfiGlobalVariableGuid|0x0|10
+
[Components.common]
MdeModulePkg/Universal/PCD/Dxe/Pcd.inf {
<LibraryClasses>
--
'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)'
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH edk2-platforms v1] Platform/ARM: Map Platform Boot Timeout PCD to global NV variable
2018-04-30 16:29 [PATCH edk2-platforms v1] Platform/ARM: Map Platform Boot Timeout PCD to global NV variable Alexei Fedorov
@ 2018-05-01 11:48 ` Ard Biesheuvel
0 siblings, 0 replies; 2+ messages in thread
From: Ard Biesheuvel @ 2018-05-01 11:48 UTC (permalink / raw)
To: Alexei Fedorov
Cc: edk2-devel@lists.01.org, Arvind Chauhan, Daniil Egranov,
Thomas Panakamattam Abraham, Leif Lindholm, Kinney, Michael D,
Matteo Carlini, Stephanie Hughes-Fitt, nd, Evan Lloyd,
Sami Mujawar
On 30 April 2018 at 18:29, Alexei Fedorov <alexei.fedorov@arm.com> wrote:
> From: Alexei Fedorov <Alexei.Fedorov@arm.com>
>
> Table 13 of UEFI Specification 2.7A describes Timeout
> global variable as NV (non-volatile), however
> gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
> is defined in [PcdsFixedAtBuild.common] section of
> edk2-platforms\Platform\ARM\VExpressPkg\ArmVExpress.dsc.inc.
> This prevents Timeout value from being persistent across
> resets and power cycles, see BdsEntry() code
> in MdeModulePkg\Universal\BdsDxe\BdsEntry.c:
> //
> // Initialize L"Timeout" EFI global variable.
> //
> BootTimeOut = PcdGet16 (PcdPlatformBootTimeOut);
>
> This patch fixes the above issue by mapping PcdPlatformBootTimeOut
> to global NV variable "Timeout":
> [PcdsDynamicHii.common.DEFAULT]
> gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|L"Timeout"|gEfiGlobalVariableGuid|0x0|10
>
> Change-Id: I8ab8854c0789da206bf821391c67007259e48361
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
> Reviewed-by: Evan Lloyd <Evan.Lloyd@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Pushed as ada17bc975be79620c126ae9a856e45c866f5701
Thanks!
> ---
> All the changes can be reviewed at:
> https://github.com/AlexeiFedorov/edk2-platforms/tree/202_timeout_value_v1
>
> Notes:
> v1:
> - Map PcdPlatformBootTimeOut to global NV Timeout variable [Alexei]
>
> Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc b/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
> index 7cb47937329efa1944ec4c156e2be995a755ce6f..de201b0c81d020e1e06ee320cf0f14f186723657 100644
> --- a/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
> +++ b/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
> @@ -1,5 +1,5 @@
> #
> -# Copyright (c) 2011-2015, ARM Limited. All rights reserved.
> +# Copyright (c) 2011-2018, ARM Limited. All rights reserved.
> #
> # This program and the accompanying materials
> # are licensed and made available under the terms and conditions of the BSD License
> @@ -353,8 +353,6 @@ [PcdsFixedAtBuild.common]
> # List of Device Paths that support BootMonFs
> gArmBootMonFsTokenSpaceGuid.PcdBootMonFsSupportedDevicePaths|L"VenHw(E7223039-5836-41E1-B542-D7EC736C5E59);VenHw(1F15DA3C-37FF-4070-B471-BB4AF12A724A)"
>
> - gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|10
> -
> # RunAxf support via Dynamic Shell Command protocol
> # We want to use the Shell Libraries but don't want it to initialise
> # automatically. We initialise the libraries when the command is called by the
> @@ -399,6 +397,9 @@ [PcdsFixedAtBuild.common]
> #
> gEfiMdeModulePkgTokenSpaceGuid.PcdSetNxForStack|TRUE
>
> +[PcdsDynamicHii.common.DEFAULT]
> + gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|L"Timeout"|gEfiGlobalVariableGuid|0x0|10
> +
> [Components.common]
> MdeModulePkg/Universal/PCD/Dxe/Pcd.inf {
> <LibraryClasses>
> --
> 'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)'
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2018-05-01 11:48 ` Ard Biesheuvel
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